Lifting-jack



(No Model.) 7

M. H.-VL]E'.VY.'

LIFTING JAGK- No. 368,096. Patented Aug. 9, 1887.

UNITED STATES PATENT OFFICE.

MAX HEBRMAN LEVY, OF PITTSBOROUGH, MISSISSIPPI.

LlFTlNG-JACK.

SPECIFICATION forming part of Letters Patent No. 368,096, dated August 9, 1887.

Application filed A1 iii 20, 1887.

To aZZ whom it may concern.- 1

Be it known that 1, MAX HERRMAN LEVY, a citizen of the United States, residing at Pittsborough, in the county of Calhoun and State of Mississippi,have invented certain new and useful Improvements in Lifting-Jacks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap" pertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon,which form a part of this specification.

Figure 1 is a perspective view of my improved lifting-jack. Fig. 2 is a vertical sectional view showing the lever in its upright position, and Fig. 3 is a similar view showing the lever in the reversed position and in a modified form.

Similar letters of reference indicate corresponding parts in all the figures.

The object of my invention is to provide a jack for vehicles adapted to the varied heights of the axle above the ground and applicable to either the front or rear axle; also, a jack adapted to effect the elevation of the vehicle or other body by an upward or downward pressure, as desired, in either case acting as a self-locking device; and, further, to provide a jack having in combination therewith suit able wrenches to facilitate the removal of the nut from the axle; and for these purposes it consistsin the improved construction and combination of parts of the same, as hereinafter more fully described and claimed.

A represents the body or standard, which may be provided with a suitable base-piece, B. This standard A is bifurcated at its upper end and is provided on one side with a groove or recess, (3, said groove being a continuation of the slot formed by the bifurcated upper portion.

Disposed within the slot in the upper portion of the standard is a lug or stop, D, the function of which will be hereinafter more fully explained.

' Suitably pivoted between the wings E E, formed by the slotted upper portion of the standard, is a lifting-lever, F, which is provided with a series of steps or shoulders, G H I J, the shoulders on the short and long arms thereof facing, respectively, toward the ends Serial K113235535.

. weight forward.

(No model.)

of said arms, and made either round or square, as shown, respectively, in Figs. 2 and 3, to adapt the jack to different styles of axles. The arrangement of the shoulders I J is such that when the lever is in an upright position, as shown in Fig. 2, with the axle resting upon either of said shoulders, the weight of the vehicle is thrown forward, causing the longer arm to be kept securely against the body and within the groove 0. When the lever is in the position shown in Fig. 3, the shoulders G H, protruding laterally a greater distance than the shoulders I J, will likewise throw the The end of the short arm of the lifting-lever, when in this last position, will engage the stop or lug D, disposed within the vertical slot, which stop or lug is preferably beveled or cut away on one side, so as to conform to the shape of the end of the short arm of the lever. It is obvious that, instead of this lug or stop D, any other device may be employed performing the same function-as, for instance, a transverse bar or other means for preventing the short arm of the lever from being forced entirely through the slot, as shown in Fig. 3.

When it is desired to raise the rear axle of a vehicle, which is usually considerably higher than the front axle, the lever is placed in a horizontal position and the shoulder J placed against the said axle. Pressure is then exerted downward until the lever assumes a perpendicular position. The same course is par: sued if the frontaxle is desired to be raised, the shoulder I in this case being employed, inasmuch as it is not necessary that the axle should be raised as high as in the first instance, the front wheels being smaller than the rear ones and capable of being removed at a less elevation.

The shoulders G H,having their faces reverse to the shoulders I J, enable me to effect elevation of the vehicle or other body by an upward pressure or force; and to attain this object the lever is placed in a horizontal position, as in the former case, and the axle brought to bear against the face of either the shoulder G or H, accordingas to whether it is desired to raise the front or rear axle, and the lever raised to a perpendicular position, the end of the short arm thereof resting against the stop D, as hereinbefore explained.

Forfurther convenience I provide the end of the longer arm of the lever with a groove or recess, K, having one end ofa spring, L, secu red therein near the shoulder G, said spring being provided with a series of notches, M, and a thumbpiece, N, for depressing the same. A collar, 0, having secured thereto or integral therewith a jaw, P, encircles the arm at this point, the face of said jaw P being opposite the face of the shoulder G. By the employment of this movable jaw the jack may be used as a wrench, and when it is desired to adjust the wrench to diflerentsizes of nuts the spring L is depressed and the jaw moved to the desired position. The pressure upon the spring is then released,the notches M serving to retain the jaw securely in its adjusted position. The short arm of the lever is also provided at its tip and upon each side thereof with notches 000, said notches also adapted to be employed as wrenches. These notches are made of different sizes, and may be conveniently em.- ployed in cases where the wrench upon the longer arm of the lever cannot be userh From the foregoing description, taken in connection with the accompanying drawings, the operation and construction of my improved lifting-jack will be readily understood without requiring further explanation.

Having thus described my invention, I claim and desire to secure by Letters Patent ot' the United Statcs l. The combination of a standard having hiside, a stop or lug, a 1i fling-lever provided with a series ofshoulders, a movable jaw, and means, substantially as described, for securing said jaw in its adjusted position upon the longer arm of the lever.

2. The combination of a standard having bifurcated upper end and recessed side, a lift ring-lever provided with a series of shoulders and having its longer arm provided with a longitudinal recess or groove, a notched spring secured in said groove and terminating in a thumb piece, and a jaw adj ustably secured upon the longer arm of said lever and having its face opposite to the face of one of the shoulders of said arm.

3. The combination of a standard having hii'uroated upper end, a liftinglever having its longer arm provided with a series of shoulders whose faces front toward the end of said arm, and means, substantially as described, for retaining the short arm of the levcrin its vertical position within the slot in the upper end of the standard.

4. The combination of a standard having hi furcatcd upper end and recessed side, and a stop or lug, a lifting'lever pivoted to one side of the center of its width, said lever being provided with a series of shoulders, the shoulders on the short and long arms thereof facing, respectively, toward the ends of said arms.

In testimony whereof I ailix my signature in presence of two witnesses.

MAX HERRMAN LEVY.

\Vitnesscs:

S. M. ROANE, J. A. B. MILLER. 

